{"product_id":"hastings-3-1-2-bore-piston-ring-set-chr-moly-030-908665","title":"Hastings, 3-1\/2\" Bore Piston Ring Set. Chr\/Moly. +.030\"","description":"\u003cp\u003eStd cyl. bore: 3.4980\" (88.85 mm). 1st. ring: 1.6mm. 2nd ring: 1.6mm. oil ring: 4.0mm. Tech tip: Piston grooves vs piston rings. It's not difficult to determine if a Hastings piston ring set will fit a certain piston. You should measure the height of the piston groove in the piston itself. The 2 top grooves will be for compression rings; the lower groove will be for the oil ring. In most cases Hastings oil rings are of the low tension 3-piece flex vent type. Ring heights are listed for reference. Tech tip: Piston oversizes. For each oversize cylinder diameter will increase with.010\" (0.254mm). The standard bore of the cylinder is listed for reference. (Information provided by Hastings Manufacturing Company; Inc.).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 84-99 Evo Big Twin; 88-03 XL Sportster1200 (NU)\u003c\/p\u003e\u003cp\u003eSuitable where the listed fitment matches.\u003c\/p\u003e","brand":"Hastings","offers":[{"title":"Default Title","offer_id":57518365442423,"sku":"908665","price":34.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/4619\/3127\/files\/908440k.jpg?v=1791378822","url":"https:\/\/www.pedrosparts.co.uk\/products\/hastings-3-1-2-bore-piston-ring-set-chr-moly-030-908665","provider":"Pedro's Parts","version":"1.0","type":"link"}